Question

Subtract the sum of 2 x + 3 y - 5 x y and 13 x - 2y + 2 x y from the sum of x minus 2 x y and 12 x + 6 x y - 3 y

Answer 1

=>2x+3y-5xy+13x-2y+2xy-(x-2xy+12x+6xy-3y)
=>15x+y-3xy-(13x+4xy-3y)
=>15x+y-3xy-13x-4xy+3y
=>2x+4y-7xy


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